• To identify regulators of primitive chronic myeloid leukemia (CML) cells, we performed a high-content cytokine screen using primary CD34 + CD38 low chronic phase CML cells. (haematologica.org)
  • Leukaemia stem cells (LSC) are identified by high CD34 and negative CD38 expression. (ghrnet.org)
  • The standard test to confirm multipotency is differentiation of the cells into osteoblasts, adipocytes and chondrocytes as well as myocytes. (wikipedia.org)
  • a) The cells should exhibits plastic adherence (b) The cell should possess specific set of cell surface markers, i.e. cluster of differentiation (CD) 73, D90, CD105 and lack expression of CD14, CD34, CD45 and human leucocyte antigen-DR (HLA-DR). (c) The cells should have the ability to differentiate in vitro into adipocyte, chondrocyte and osteoblast. (stemcellsgroup.com)
  • Combined signaling through interleukin-7 receptors and Flt3 selectively promotes B-cell commitment and differentiation from uncommitted murine bone marrow progenitor cells. (biolegend.com)
  • The use of ASCs in regenerative medicine and tissue engineering research has important advantages in comparison with ESCs, since there are no ethical complications and the process of differentiation of these cells is better controlled. (bvsalud.org)
  • 8,9 Because dental stem cells (DSCs) are easy to obtain and present a great potential of differentiation, there has been a growing interest in their use in regenerative medicine for treatment of various human diseases. (bvsalud.org)
  • CSCs take charge of a cancer hierarchy, harboring stem cell-like properties involving self-renewal and aberrant differentiation potential. (bmbreports.org)
  • Additionally, edited CD34 + cells can be further cultured in conditions stimulating lineage-specific differentiation by combining StemSpan™ media with expansion supplements designed for the expansion and differentiation of progenitors to erythroid, myeloid, megakaryocyte, natural killer (NK), or T cell lineages. (stemcell.com)
  • Sequential rounds of division and differentiation give rise to an enormous amplification of cell numbers, necessary for the production of mature blood cells. (justia.com)
  • This process of division and differentiation is subject to regulation at many levels to control cell production. (justia.com)
  • Our research focuses on developmental pathways that regulate hematopoietic cell growth and differentiation and are disrupted in the course of neoplastic transformation, particularly in leukemias and lymphomas. (stanford.edu)
  • Laminin 411 markedly induced the expression of the genes Foxa2 and Sox17 , markers for pancreatic precursor cells, efficiently induced IPC differentiation from MSCs, and up-regulated insulin expression at both mRNA and protein levels. (biomedcentral.com)
  • In colony-forming unit assays, the hematopoietic stem cell plasticity remained similar after 14 days of bioreactor co-culture, whereas monolayer co-cultures showed increasing signs of HPC differentiation and loss of stemness. (fairdomhub.org)
  • Also, they can be identified by the expression of many molecules including CD105 (SH2) CD73 and CD34, CD45. (stemcellsgroup.com)
  • In this assay hematopoietic cells are cultured in MyeloCult™ medium with supportive human or mouse stromal cell layers and tested for their ability to generate myeloid clonogenic progenitors for several weeks as assayed by replating the cells in a colony-forming unit (CFU) assay using MethoCult™ medium. (stemcell.com)
  • Establish stromal cell layers and culture hematopoietic progenitors in "Dexter-type" long-term bone marrow cultures. (stemcell.com)
  • It is expressed on early B lymphoid lineage cells in bone marrow, on primitive myeloid progenitors within the BM CD34+ cell population. (biolegend.com)
  • Early in murine embryonic development, hematopoietic progenitors can be found in the para-aortic splanchnopleura region on embryonic day 7 (as depicted in Figure 1 A), but these progenitors are not LT reconstituting although they do possess lymphoid potential [ 11 - 13 ]. (biomedcentral.com)
  • These more advanced hematopoietic progenitors isolated from the aorta-gonad-mesonephros (AGM) region at embryonic day 9.5 to 10 can give rise to lymphoid lineages and are LT reconstituting definitive HSCs, but since this time point is after the establishment of the circulatory system in the embryo their source was difficult to determine [ 13 ]. (biomedcentral.com)
  • Cumano and colleagues' approach was to culture explants containing hematopoietic progenitors isolated from the yolk sac and the embryo proper before the onset of circulation, and to determine their LT reconstitution potential [ 10 ]. (biomedcentral.com)
  • Their results indicated that yolk sac progenitors before the onset of circulation did not have LT reconstitution potential while progenitors isolated from the AGM did, which indicates that primitive and definitive hematopoiesis may occur at distinct anatomical locations [ 10 ]. (biomedcentral.com)
  • Indeed, one critical question contemplated at the Workshop was whether tumors derive from organ stem cells that retain self-renewal properties but acquire epigenetic and genetic changes required for tumorigenicity or whether tumor stem cells are proliferative progenitors that acquire self-renewal capacity. (aacrjournals.org)
  • We also observed differential effects of the four mutants on progenitors, myeloid cells and megakaryocytes. (biomedcentral.com)
  • cells either divide asymmetrically to preserve stem cell progenitors, partition into sister cells, differentiate along fate pathways, or undergo oncogenesis following the formation of normal tissues. (bioseek.eu)
  • We analyzed here, the transduction efficiency of a pDC cell line, GEN2.2, and of pDC derived from CD34+ progenitors, using lentiviral vectors (LV) pseudotyped with different envelope glycoproteins such as the vesicular stomatitis virus envelope (VSVG), the gibbon ape leukaemia virus envelope (GaLV) or the feline endogenous virus envelope (RD114). (biomedcentral.com)
  • Leukocyte function-associated antigen-1 (LFA-1) (CD11a/CD18) was expressed on some populations of hematopoietic cells and contributed to the proliferation by interacting with stromal cells. (elsevierpure.com)
  • Similarly, they are characterized by an extensive capacity for self-renewal, proliferation, potential to differentiate into multiple lineages and their immune-modulatory role on various cells. (stemcellsgroup.com)
  • MSC derived from placenta have long-term proliferation and immunomodulatory capacity, superior to bone marrow-derived MSC. (stemcellsgroup.com)
  • Importantly, subsequent dose-response analyses revealed an age-associated reduction in the growth factor-stimulated proliferation of CD49f + cells mediated by reduced activation of AKT and altered cell cycle entry and progression. (ashpublications.org)
  • These findings identify a new intrinsic, pervasive, and progressive aging-related alteration in the biological and signaling mechanisms required to drive the proliferation of very primitive, normal human hematopoietic cells. (ashpublications.org)
  • We designed a study to find theoretical evidence for the induction, movement, fusion, proliferation, and safety of human adipose mesenchymal stem cells (hADSCs) in intraocular application. (molvis.org)
  • decreased cell proliferation, cell cycle arrest, and induction of apoptosis. (123dok.net)
  • It was suggested that HOXD9 contributes to both cell proliferation and/or cell survival. (123dok.net)
  • HOXD9 siRNA treatment of SK-MG-1 SP cells resulted in reduced cell proliferation. (123dok.net)
  • Conclusions: Our results suggest that HOXD9 may be a novel marker of GCSCs and cell proliferation and/or survival factor in gliomas and glioma cancer stem-like cells, and a potential therapeutic target. (123dok.net)
  • Homeobox proteins are master regulators of develop-ment and control many cellular processes, including proliferation, apoptosis, cell shape, and cell migration. (123dok.net)
  • Acute myeloid leukemia (AML) results from the over-proliferation of progenitor cells of the myeloid lineage in the bone marrow. (ghrnet.org)
  • Both StemPro and HPL medium proved to be suitable for clinical application and allowed sufficient cell proliferation. (fairdomhub.org)
  • Mesenchymal stem cells (MSCs) also known as mesenchymal stromal cells or medicinal signaling cells are multipotent stromal cells that can differentiate into a variety of cell types, including osteoblasts (bone cells), chondrocytes (cartilage cells), myocytes (muscle cells) and adipocytes (fat cells which give rise to marrow adipose tissue). (wikipedia.org)
  • Furthermore, we show expression of MSTN by CML mesenchymal stromal cells, and that myostatin propeptide has a direct and instant effect on CML cells, independent of myostatin, by demonstrating binding of myostatin propeptide to the cell surface and increased phosphorylation of STAT5 and SMAD2/3. (haematologica.org)
  • Abnormal DNA methylation modifies HOX genes expression in bone marrow mesenchymal stromal cells of myelodysplasias and de novo acute myeloid leukemias. (lnox-team.org)
  • Mesenchymal stromal cells (MSCs) from human bone marrow serve as a resource for cell-based therapies in regenerative medicine. (fairdomhub.org)
  • In previous studies human mesenchymal stromal cells (MSCs) maintained the "stemness" of human hematopoietic progenitor cells (HPCs) through direct cell-cell contact in two-dimensional co-culture … systems. (fairdomhub.org)
  • However, more primitive cells capable of reconstituting hematopoiesis did not express LFA-1. (elsevierpure.com)
  • Mouse hematopoiesis was thought to develop initially in the yolk sac, where primitive hematopoietic development occurs [ 4 ]. (biomedcentral.com)
  • This development is also often referred to as fetal hematopoiesis, and was demonstrated by the production of embryonic erythrocytes that still possess a nucleus, express fetal hemoglobin, and lack any lymphoid potential [ 5 ]. (biomedcentral.com)
  • Understanding the impact of inflammation on hematopoiesis can unlock new approaches to treating and/or preventing co-morbidities ranging from anemia to bone marrow failure to leukemia. (simplyblood.org)
  • To address this knowledge gap, we developed an in vivo hematopoietic stem cell (HSC)-based large-scale CRISPR knockout screening platform to enable the genetic interrogation of hematopoiesis and broad aspects of immune cell function in vivo. (biorxiv.org)
  • The ability to genetically manipulate hematopoietic stem and progenitor cells (HSPCs) in particular has significantly advanced our understanding of the mechanisms that regulate hematopoiesis and is contributing to the development of novel cellular therapies. (stemcell.com)
  • A member of the tyrosine kinase receptor family, Tie-2 is expressed on endothelial and a subset of hematopoietic cells and is believed to play a role in both angiogenesis and hematopoiesis during development of the mouse embryo. (thermofisher.com)
  • Depending on the degree of bone marrow damage (i.e., suppression), patients who undergo cytoreductive therapy must also receive therapy to reconstitute bone marrow function (hematopoiesis). (justia.com)
  • In summary, we identify myostatin propeptide as a novel positive regulator of primitive CML cells and corresponding normal hematopoietic cells. (haematologica.org)
  • The first source of Mesenchymal stem cells was in the bone marrow and considered to be the gold standard for clinical research, although various other sources have being discovered which include: Adipose tissue, Dental pulp, Mobilised Peripheral blood, Amniotic fluid, Joint synovium, synovial fluid, Endosteum, Periosteum, Menstrual blood and birth-derived tissues. (stemcellsgroup.com)
  • The injected cells did not fuse with the retina and gathered in the central and peripheral areas, which is the lesion area of the OIR model. (molvis.org)
  • Improved methods and pharmaceutical compositions are provided herein for mobilizing hematopoietic progenitor cells from bone marrow into peripheral blood, comprising the administration of an effective amount of an inhibitor of GTPases, such as Rac1 and Rac2 alone or in combination. (justia.com)
  • Specifically, methods are disclosed for mobilizing hematopoietic stem cells into a subject's peripheral blood. (justia.com)
  • In particular, embodiments of the method involve inhibition of both Rac1 and Rac2 GTPases to increase the numbers of hematopoietic stem cells into a subject's peripheral blood of a subject. (justia.com)
  • The present invention relates generally to improved methods and pharmaceutical compositions for mobilizing hematopoietic stem and progenitor cell from bone marrow into peripheral blood by administration of at least one inhibitor of a GTPase, such as Rac1 and/or Rac2 GTPase. (justia.com)
  • In such procedures, patients undergo successive treatments with cell mobilization agents to cause mobilization of hematopoietic progenitor cells from the bone marrow to the peripheral circulation for harvesting. (justia.com)
  • These stem cells are capable of differentiating into chondrocytes, cardiomyocytes, melanocytes, and hepatocyte‐like cells in vitro. (wikipedia.org)
  • HADSCs were induced to confirm that they can express the characteristics of endothelial cells (ECs) in vitro. (molvis.org)
  • Therefore, in this study, we assessed the ability of human adipose mesenchymal stem cells (hADSCs) to express the characteristics of ECs after induction in vitro to evaluate the theoretical feasibility of maintaining or restoring the function of ECs after intraocular application. (molvis.org)
  • In most cases, clinically relevant cell numbers for MSC-based therapies can be only obtained by in vitro expansion of isolated cells. (frontiersin.org)
  • The participants critically discussed the need for a precise definition of cancer stem cells, the requirement for new markers and more rapid and tractable in vitro and in vivo assays, and the need to develop drug screening strategies to selectively target cancer stem cells to generate therapeutics for this subpopulation of cells that could be resistant to classic treatments while possessing potent tumor-forming capacity. (aacrjournals.org)
  • Progenitor cell function may be measured post-modification by in vitro CFU assays. (stemcell.com)
  • We establish a three-dimensional (3D) co-culture system based on a custom-made chip, the 3(D)-KITChip, as an in vitro model system of the human hematopoietic stem cell niche. (fairdomhub.org)
  • Chronic myeloid leukemia (CML) is a myeloproliferative neoplasm caused by an acquired 9;22-chromosomal translocation in a hematopoietic stem cell (HSC) resulting in the expression of the BCR-ABL1 fusion protein. (haematologica.org)
  • Ligation of Flk-2 with Flt3 ligand regulates the growth of hematopoietic stem cells and promotes the survival of primitive hematopoietic progenitor cells with myeloid as well as B lymphoid potential. (biolegend.com)
  • In co-cultures of BC cell lines with human macrophages, a double-positive myeloid-tumoral hybrid population (CD11b+EPCAM+) was detected after 48 h, which indicates BC cell-macrophage fusions known as tumor hybrid cells (THC). (bvsalud.org)
  • This mechanism also applies to hematopoietic cells transformed by other HOX genes, including CDX2, which is highly expressed in a majority of acute myeloid leukemias, thus providing a molecular approach based on GSK-3 inhibitory strategies to target HOX-associated transcription in a broad spectrum of leukemias. (stanford.edu)
  • In humans, at least two subsets of DC are known in the blood, myeloid DC (also known as interstitial or dermal DC), and plasmacytoid DC (pDC) and Langerhans cells (LC) in the tissues [ 3 ]. (biomedcentral.com)
  • While the terms mesenchymal stem cell (MSC) and marrow stromal cell have been used interchangeably for many years, neither term is sufficiently descriptive: Mesenchyme is embryonic connective tissue that is derived from the mesoderm and that differentiates into hematopoietic and connective tissue, whereas MSCs do not differentiate into hematopoietic cells. (wikipedia.org)
  • Mesenchymal stem cells (MSCs), a term first coined by Arnold I. Caplan in 1991, are characterized morphologically by a small cell body with a few cell processes that are long and thin. (wikipedia.org)
  • Bone marrow was the original source of MSCs, and is still the most frequently utilized source. (wikipedia.org)
  • The youngest and most primitive MSCs may be obtained from umbilical cord tissue, namely Wharton's jelly and the umbilical cord blood. (wikipedia.org)
  • However, MSCs are found in much higher concentration in the Wharton's jelly compared to cord blood, which is a rich source of hematopoietic stem cells. (wikipedia.org)
  • These MSCs may prove to be a useful source of MSCs for clinical applications, due to their primitive properties and fast growth rate. (wikipedia.org)
  • These cells have several advantages over bone-marrow-derived MSCs. (wikipedia.org)
  • Adipose-tissue-derived MSCs (AdMSCs), in addition to being easier and safer to isolate than bone-marrow-derived MSCs, can be obtained in larger quantities. (wikipedia.org)
  • MSCs have been seen to even differentiate into neuron-like cells, but doubt remains about whether the MSC-derived neurons are functional. (wikipedia.org)
  • Thus, these properties of MSCs make these cells potentially ideal candidates for tissue technology. (stemcellsgroup.com)
  • Arnold Caplan (1991), coined the term "mesenchymal stem cell and stated that the cells as multipotent mesenchymal cell populations which can differentiate into several tissue types, and demonstrated roles for MSCs in the regeneration of bone, cartilage or ligaments in animal and clinical studies. (stemcellsgroup.com)
  • Mesenchymal stem/stromal cells (MSCs) can be isolated from neonatal tissues, most of which are discarded after birth, including placental tissues, fetal membranes, umbilical cord, and amniotic fluid. (stemcellsgroup.com)
  • Thus, neonatal tissues are easily available and they have biological advantages in comparison to adult sources that make them a useful source for stem cells including MSCs. (stemcellsgroup.com)
  • Mesenchymal stem cells (MSCs) are ASCs, and were first described in 1966 by Friedenstein et al. (bvsalud.org)
  • MSCs can be isolated from different locations, such as bone marrow, umbilical cord, placenta, adipose and dental tissues. (bvsalud.org)
  • Because of their multi/pluripotency and immunosuppressive properties, mesenchymal stem/stromal cells (MSCs) are important tools for treating immune disorders and for tissue repair. (biomedcentral.com)
  • Producing cells according to Good Manufacturing Practices (GMPs) is a global challenge for the production of all cells for use in humans, specifically mesenchymal stem/stroma cells (MSCs), one of the most promising tools in cellular therapy and regenerative medicine. (biomedcentral.com)
  • MSCs with a mesodermic origin were first described by Alexander Friedenstein and colleagues in the 1960s and 1970s[ 1 ] as non-hematopoietic bone marrow (BM) cells that adhered to plastic and that could develop into colonies with a fibroblastic appearance. (biomedcentral.com)
  • Cells referred to as MSCs originating from various tissues are now used in clinical trials. (biomedcentral.com)
  • Despite almost 50 years of research and over 20 years of preclinical and clinical studies, the question of curative potential of mesenchymal stem/stromal cells (MSCs) is still widely discussed in the scientific community. (frontiersin.org)
  • In this mini review, we will discuss point by point possible pitfalls in the production of human MSCs for cell therapies, without consideration of material-based applications. (frontiersin.org)
  • Only a careful consideration and standardization of all pretreatment processes/methods for the different applications of MSCs will ensure robust and reproducible performance of these cell populations in the different experimental and clinical settings. (frontiersin.org)
  • Mesenchymal stem/stromal cells (MSCs) have the capacity to differentiate into cells and tissues of one germ layer, here the mesodermal lineage, and are consequently multipotent. (frontiersin.org)
  • Insulin-producing cells (IPCs) differentiated from mesenchymal stem cells (MSCs) hold great promise in the treatment of DM. (biomedcentral.com)
  • Mesenchymal stem cells (MSCs) have gained interest because of its potential application in regeneration medicine and cytotherapy. (biomedcentral.com)
  • MSCs exhibited the typical fibroblastoid morphology, with distinct differences in cell size depending on the medium. (fairdomhub.org)
  • The microcavities of the 3(D)-KITChip were inoculated with human bone marrow MSCs together with umbilical cord blood HPCs. (fairdomhub.org)
  • No obvious correlations between clinical parameters, including age, karyotype, existence of paroxysmal nocturnal hemoglobinuria clones, pretreatment blood counts, progenitor cell counts, and the response to immunosuppressive therapy (IST), were found. (springermedizin.at)
  • Recently a key participant in neovascularization, the endothelial progenitor cell, has been the subject of intense cardiovascular research to explore whether it can serve as a biomarker for vascular injury. (biomedcentral.com)
  • In this review, we examine the identity of the endothelial progenitor cell as well as the evidence that support its role as a key responder after burn insult. (biomedcentral.com)
  • While there is conflicting evidence with regards to the delta of endothelial progenitor cell mobilization and burn severity, it is clear that they play an important role in wound healing. (biomedcentral.com)
  • The various mature blood cell types are all ultimately derived from a single class of progenitor cell known as hematopoietic stem cells. (justia.com)
  • The aim of this study was to identify early diabetes-related changes in the expression of genes that have been reported to be closely involved in endothelial progenitor cell migration and function. (biomedcentral.com)
  • Based on review of current literature, this study examined the expression level of 35 genes that are known to be involved in endothelial progenitor cell migration and function in magnetically sorted Lin - /VEGF-R2 + endothelial progenitor cells obtained from the bone marrow of Akita mice in the early stages of diabetes (18 weeks) using RT-PCR and Western blotting. (biomedcentral.com)
  • (B) Subset of cell surface markers used in the characterization of this developmental process. (biomedcentral.com)
  • In a recent study in the laboratory of Dr. Eric Pietras (University of Colorado), Rabe et al use the cell surface markers EPCR and CD34 to coordinately distinguish HSCs with distinct functional and molecular properties within the SLAM (Lineage- c-Kit+ Sca-1+ CD48- CD150+) gate under conditions of chronic inflammation. (simplyblood.org)
  • In fetal liver and adult bone marrow, Tie-2 is expressed by a subpopulation of hematopoietic progenitor cells characterized as Lineage markers^-, c-Kit^+, Sca1^+ cells. (thermofisher.com)
  • In BC cell lines, PBA induced significant cell cycle arrest in G1, reduced stemness markers and increased PD-L1 expression with a corresponding reduction in histone 3 and 4 acetylation patterns. (bvsalud.org)
  • These THC were characterized by high PD-L1 and stemness markers (SOX2, NANOG, miR-302) as compared with non-fused (CD11b-EPCAM+) cancer cells. (bvsalud.org)
  • In glioma CSC (GCSC), the expression of some neural stem markers, such as SOX2 and Musa-shi-1, has been reported[6,7]. (123dok.net)
  • Human pDC do not express lineage specific markers, but are characterized by the expression of HLA-DR, CD4, CD123, BDCA2 and BDCA4 [ 3 ]. (biomedcentral.com)
  • The term encompasses multipotent cells derived from other non-marrow tissues, such as placenta, umbilical cord blood, adipose tissue, adult muscle, corneal stroma, or the dental pulp of deciduous (baby) teeth. (wikipedia.org)
  • Due to the ability to self-renew and to differentiate into cells that are found throughout the body, there is a great interest in using stem cells for the regeneration of injured tissues as well as to develop tissue-engineered implants and bio-hybrid organs, in order to restore tissue function. (bvsalud.org)
  • In human postnatal dental tissues, five main sources of DSCs have been identified: dental pulp stem cells (DPSCs), 11 stem cells from human exfoliated deciduous teeth (SHEDs), 12 periodontal ligament stem cells (PDLSCs), 13 dental follicle stem cells (DFSCs) 14 and stem cells from apical papilla (SCAPs). (bvsalud.org)
  • The subject's blood can be processed and used to repopulate the destroyed lymphohematopoietic system of a recipient and may in the future be utilized to repair a variety of non-hematopoietic tissues. (justia.com)
  • Results: In this study, we found high expression of the HOXD9 gene transcript in glioma cell lines and human glioma tissues by quantitative real-time PCR. (123dok.net)
  • The term "oncotarget" encompasses all molecules, pathways, cellular functions, cell types, and even tissues that can be viewed as targets relevant to cancer as well as other diseases. (oncotarget.com)
  • The structural integrity of these tissues requires extensive cell-cell adhesion and interactions mediated by the adhesive junctional complexes consisting of the adherens junctions and desmosomes [ 2 - 5 ]. (oncotarget.com)
  • Epithelial to mesenchymal transition (EMT) is a central mechanism for diversifying the cells found in complex tissues. (bioseek.eu)
  • To clarify the phenotypes of human hematopoietic stem cells (HSCs), we initially prepared novel antibodies against CD34 and labeled one of them (4A1) with allophycocyanin (APC). (elsevierpure.com)
  • With this, we analyzed the phenotypes of CD34 + HSCs and showed that primitive HSCs or CD34 + CD33 - cells expressed adhesion molecules such as CD43, CD44, CD11a, CD11c, CD18, and leukocyte adhesion molecule (LAM-1). (elsevierpure.com)
  • Human hematopoietic stem cells (HSCs), like their counterparts in mice, comprise a functionally and molecularly heterogeneous population of cells throughout life that collectively maintain required outputs of mature blood cells under homeostatic conditions. (ashpublications.org)
  • Cumulatively, the authors define a CD34- EPCR+ (or Fgd5-ZSGreen+) population of SLAM HSCs that retains dormancy and functional potential even in the face of strong external pressure from chronic IL-1 exposure. (simplyblood.org)
  • Inflammation is being increasingly implicated as a cell extrinsic factor that influences both the short-term and long-term function of HSCs in the bone marrow. (simplyblood.org)
  • This paper further dissects important molecular changes that occur in the most primitive, long-term HSCs in response to inflammation, which has implications for basic research as well as clinical conditions. (simplyblood.org)
  • One particularly important finding is the observation that the most primitive long-term HSCs (defined by EPCR+ CD34- SLAM) do not dramatically alter their cell cycle in response to chronic inflammation. (simplyblood.org)
  • SAGA complex member expression is significantly reduced in aged HSCs and upregulated with heterochronic parabiosis, suggesting a novel mechanism of age-associated hematopoietic decline and rejuvenation. (biorxiv.org)
  • HSCs expressing the receptor tyrosine kinase TIE2 are quiescent and antiapoptotic and comprise a side population of HSCs that adhere to osteoblasts in the bone marrow niche. (thermofisher.com)
  • Aberrantly expressed cytokines in the bone marrow (BM) niche are increasingly recognized as critical mediators of survival and expansion of leukemic stem cells. (haematologica.org)
  • Cytokines are essential for the function and maintenance of cells, and altered cytokine levels influence not only leukemic cells, but also the normal HSC within the BM. (haematologica.org)
  • A pro-inflammatory environment is thought to provide a selective advantage for the leukemic stem cells (LSC). (haematologica.org)
  • His laboratory has followed two primary interests: 1) the transcription factor networks that regulate fate determination in various cells that make blood, and 2) the cell surface proteins expressed by hematopoietic stem cells that and allow them to communicate with their microenvironment. (ubc.ca)
  • They could differentiate into bone, cartilage, and a hematopoietic microenvironment. (biomedcentral.com)
  • These data support the notion that the 3D microenvironment created within the microcavity array preserves vital stem cell functions of HPCs more efficiently than conventional co-culture systems. (fairdomhub.org)
  • Out of the 313 unique human cytokines evaluated, 11 were found to expand cell numbers ≥2-fold in a 7-day culture. (haematologica.org)
  • Distinct anatomical regions of primitive and definitive hematopoietic development in both the mouse and human. (biomedcentral.com)
  • This Technical Bulletin provides instructions for CRISPR-Cas9 genome editing and maintenance of human CD34 + cells, including optimized pre- and post-editing culture conditions and methods to evaluate genome editing efficiency. (stemcell.com)
  • While CRISPR-Cas9 technology has been successfully applied in numerous cell lines, its application in primary human CD34 + cells has been hampered by challenges in efficient expression and delivery of CRISPR-Cas9 components. (stemcell.com)
  • Functional analysis of HOXD9 in human gliomas and glioma cancer stem cells. (123dok.net)
  • Finally, we cultured human glioma cancer stem cells (GCSCs) from patient specimens found with high expression of HOXD9 in GCSCs compared with normal astrocyte cells and neural stem/progenitor cells (NSPCs). (123dok.net)
  • The aim of this study was to comparatively assess the efficiency of xeno-free human platelet lysate (HPL)-based cell expansion with two commercially available media-StemPro MSC SFM CTS (for human ex vivo tissue and cell culture processing applications) and MSCGM (non-GMP-compliant, for research only)-in an academic setting as the first optimization step toward GMP-compliant manufacturing. (fairdomhub.org)
  • The complexity of the human bone marrow, with context to haematological malignancies, is more difficult to elucidate with the present strategies compared to the niche of solid tumors. (fortunejournals.com)
  • One particular element that is beginning to garner interest involves the systemic mobilization of endothelial progenitor cells (EPCs). (biomedcentral.com)
  • The success of treatment crucially depends on the mobilization of the bone marrow stem cells, the subsequent return of which permits the patient to achieve reconstitution of a functioning hematopoietic system. (justia.com)
  • In many cases, successfully mobilization is not effected in the patient and inadequate numbers of hematopoietic stem cells are harvested from these patients using current methods. (justia.com)
  • Low SDF-1 expression may contribute to the dysfunctional mobilization of bone marrow Lin - /VEGF-R2 + endothelial progenitor cells, which may contribute to microvascular injury in early diabetes. (biomedcentral.com)
  • Stem cells (SCs) are undifferentiated cells with self-renewal ability and capacity to differentiate into specialized cell types. (bvsalud.org)
  • In both species, an early developmental change in the HSC population involves a postnatal switch from a state in which most of these cells exist in a rapidly cycling state and maintain a high self-renewal potential to a state in which the majority of cells are in a quiescent state with an overall reduced self-renewal potential. (ashpublications.org)
  • The self-renewal and proliferative nature of stem cells raised the hope to fight against various diseases. (biomedcentral.com)
  • The meeting participants were charged with evaluating data suggesting that cancers develop from a small subset of cells with self-renewal properties analogous to organ stem cells. (aacrjournals.org)
  • True stem cells are both pluripotent-that is they can give rise to all cell types-and capable of self-renewal. (justia.com)
  • These cancer stem cells have the capacity to both divide and expand the cancer stem cell pool and to differentiate into the heterogeneous nontumorigenic cancer cell types that in most cases appear to constitute the bulk of the cancer cells within the tumor. (aacrjournals.org)
  • Further studies in mice by Cumano and colleagues sought to address the issue of an anatomical origin of the long-term (LT) reconstituting hematopoietic stem cell (HSC) found in adult animals [ 10 ]. (biomedcentral.com)
  • Overall, they demonstrated that the definitive HSC differs from the primitive HSC by lymphoid potential as well as in their ability to achieve LT reconstitution following transfer into adult recipients. (biomedcentral.com)
  • 1,2 Regarding the origin, they can be classified as embryonic stem cells (ESCs) and adult stem cells (ASCs). (bvsalud.org)
  • There his work focused on transcriptional control of hematopoietic stem cell maturation and cell fate. (ubc.ca)
  • We demonstrate here that GSK-3 maintains the MLL leukemia stem cell transcriptional program by promoting the conditional association of CREB and its coactivators TORC and CBP with homedomain protein MEIS1, a critical component of the MLL-subordinate program, which in turn facilitates HOX-mediated transcription and transformation. (stanford.edu)
  • Stromal cells are connective tissue cells that form the supportive structure in which the functional cells of the tissue reside. (wikipedia.org)
  • In explant method, the dental tissue is placed on a plastic surface and the cells migrate out from the tissue fragment adhering to culture flasks or dishes ( Figure 1 ). (bvsalud.org)
  • Non-reproducible treatment outcomes or even absence of treatment effects in comparison to control groups challenges the potential of these cells for routine application both in tissue engineering and in regenerative medicine. (frontiersin.org)
  • If the cancer stem cell model is correct and if such cells retain the hallmarks of some tissue stem cells in being rare and entering the cell cycle infrequently, they could constitute a population that is intrinsically resistant to current therapies designed to kill cycling cells. (aacrjournals.org)
  • Through gene knockout studies he has shown that these molecules act as a type of molecular "Teflon" to make cells more mobile and invasive and also facilitate chemotaxis. (ubc.ca)
  • He has delineated the function of these molecules in diverse set of biological processes including: 1) gut and kidney formation, 2) vascular permeability, 3) mucosal inflammatory disease, 4) stem cell homing and migration, and 5) epithelial tumor progression. (ubc.ca)
  • Since FA cells are defective in DNA repair, we hypothesized that FA hematopoietic stem and progenitor cells (HSPCs) might express DNA damage-associated stress molecules such as natural killer group 2 member D ligands (NKG2D-Ls). (bvsalud.org)
  • In innate immunity, immune cells are activated by their pattern recognition receptors (PRRs), which bind to pattern molecules of invading pathogens. (fortunejournals.com)
  • This domain interacts with adaptor molecules and activates a cascade which regulates the inflammatory status in cells [12]. (fortunejournals.com)
  • For primary CML samples, retention of CD34-expression was also seen after culture. (haematologica.org)
  • What started as a series of microscopic observations in different animal model systems has since evolved into studies of gene expression and regulation, and subsequent protein-protein interactions, cell surface protein expression profiling, and functional mapping of cell fates. (biomedcentral.com)
  • Early attempts to apply CRISPR-Cas9 for genome editing in CD34 + HSPCs used plasmids for Cas9 and guide RNA (gRNA) expression, which resulted in low targeting efficiency and high toxicity. (stemcell.com)
  • Aberrant expression of a third marker such as Thy-1/CD90 negativity, expression of CLL-1 and IL-3R (CD123), intermediate levels of aldehyde dehydrogenase and co-expression of common chromosomal translocation may be used to distinguish from normal hematopoietic stem cells. (ghrnet.org)
  • Two genes, SDF-1 and SELE, were significantly differentially expressed in diabetic Lin - /VEGF-R2 + endothelial progenitor cells and six other genes, CAV1, eNOS, CLDN5, NANOG, OCLN and BDNF, showed very low levels of expression in diabetic Lin - /VEGF-R2 + progenitor cells. (biomedcentral.com)
  • Using RT(2)-PCR and western blots, we demonstrate that a proportion of HPCs maintained the expression of CD34 throughout a culture period of 14 days. (fairdomhub.org)
  • Sleeping Elegance is far more susceptible to more than expression inhibition than piggyBac and Tol2, the cargo capacity of Sleeping Attractiveness is constrained, and contrary to Tol2 and piggyBac that Inhibitors,Modulators,Libraries are lively in all mamma lian cell kinds tested, Sleeping Elegance display cell form dependent exercise. (p450inhibitors.com)
  • C57 BL/6 bone marrow cells stained with CD45R/B220 APC+ CD11b APC and CD135 (clone A2F10) Brilliant Violet 421™ (top) or rat IgG2a, κ Brilliant Violet 421™ isotype control (bottom). (biolegend.com)
  • We see exactly that here - the composition of the SLAM gate changes significantly following IL-1 treatment, such that transplant of unfractionated SLAM cells versus the marker combinations we tested give distinct results. (simplyblood.org)
  • Placenta is an ideal starting material for the large-scale manufacture of multiple cell doses of allogeneic MSC. (stemcellsgroup.com)
  • 3,4 The zygote and cells derived from the first two cellular divisions constitute the most primitive cells (totipotent cells) that are capable of forming the embryo and the embryonic annexes (e.g. placenta, amniotic membranes etc). (bvsalud.org)
  • For the past 20 years, plenty of studies have suggested that only a small subpopulation of the cancer cells with tumor-initiating capability is the core origin of the tumorigenesis and the subset of cancer cells was named cancer stem cells (CSCs). (bmbreports.org)
  • This document also includes a case study detailing optimization of pre- and post-editing culture conditions to support a high efficiency genome editing workflow in CD34 + HSPCs. (stemcell.com)
  • Notably, a high proportion of BM CD34+ HSPCs from patients with FA also expressed increased levels of NKG2D-Ls, which correlated inversely with the percentage of CD34+ cells in BM. (bvsalud.org)
  • Dendritic cells (DCs) comprise heterogeneous subsets of professional antigen-presenting cells, linking innate and adaptive immunity. (biomedcentral.com)
  • The cells were first named colony-forming unit-fibroblasts (CFU-Fs). (biomedcentral.com)
  • 1 The BCR-ABL1 fusion protein is a constitutively active tyrosine kinase and triggers a cascade of aberrant downstream signaling pathways leading to clonal outgrowth of CML cells and subsequent disease manifestation. (haematologica.org)
  • A workshop was convened by the AACR to discuss the rapidly emerging cancer stem cell model for tumor development and progression. (aacrjournals.org)
  • Either mechanism is different from the widely held notion that most cells in a tumor should be competent for tumor formation. (aacrjournals.org)
  • In the cancer stem cell model of tumors, there is a small subset of cancer cells, the cancer stem cells, which constitute a reservoir of self-sustaining cells with the exclusive ability to self-renew and maintain the tumor. (aacrjournals.org)
  • If cancer stem cells are relatively refractory to therapies that have been developed to eradicate the rapidly dividing cells within the tumor that constitute the majority of the nonstem cell component of tumors, then they are unlikely to be curative and relapses would be expected. (aacrjournals.org)
  • Our data indicate that PBA could have beneficial properties for BC management, affecting not only tumor cells but also the TME. (bvsalud.org)
  • called either cancer stem cells (CSCs) or tumor-initiat-ing cells[3]. (123dok.net)
  • In contrast, while some studies have suggested a tumor promoting activity of plakoglobin in a cell/malignancy specific context, it generally acts as a tumor/metastasis suppressor. (oncotarget.com)
  • There he worked with Dr. Max D. Cooper (Howard Hughes Medical Institute, National Academy of Sciences) and his research focused on cell surface proteins expressed by preB cells that regulate B cell maturation and homing. (ubc.ca)
  • Cadherins are single-pass transmembrane glycoproteins that form homotypic interactions with cadherin proteins on neighboring cells and interact intracellularly with proteins of the catenin family [ 4 , 5 ]. (oncotarget.com)
  • The inflammatory arthritides, including rheumatoid arthritis (RA) and psoriatic arthritis (PsA), comprise autoimmune disorders characterised by chronic joint inflammation, immune cell infiltration to the synovium, fibroblast-like synoviocyte expansion and destruction of cartilage and bone. (biomedcentral.com)
  • There can, however, be few similarities between the two, as the bone marrow is a common site of metastasis of solid tumors too [6]. (fortunejournals.com)
  • Relevant information has now been established on solid tumors and their micro-environments, which include immune, endothelial and mesenchymal cells. (fortunejournals.com)
  • Background: HOX genes encode a family of homeodomain-containing transcription factors involved in the determination of cell fate and identity during embryonic development. (123dok.net)
  • Chronic lymphoid leukaemia and hairy cell leukaemia due to chronic exposure to benzene: Report of three cases. (cdc.gov)
  • 2 1 There is growing evidence to suggest that primitive CML cells affect the bone marrow (BM) niche, contributing to deregulated cytokine levels. (haematologica.org)
  • Initial experiments revealed that advancing donor age was accompanied by a significant and progressively delayed proliferative response but not the altered mature cell outputs seen in normal older individuals. (ashpublications.org)
  • When stimulated to divide, they give rise to more committed, differentiated daughter cells with less proliferative potential, called "early progenitor" cells. (justia.com)